(19)

(11)

EP 4 158 407 A1

(12)

(43) Date of publication: 05.04.2023 Bulletin 2023/14 (21) Application number: 21733301.2 (22) Date of filing: 25.05.2021

(51) International Patent Classification (IPC):  G02B 9/60(2006.01) G02B 13/08(2006.01) G02B 13/00(2006.01) (52) Cooperative Patent Classification (CPC): G02B 13/007; G02B 13/08; G02B 13/0045; G02B 9/60 (86) International application number: PCT/US2021/034018 (87) International publication number: WO 2021/242735 (02.12.2021 Gazette 2021/48)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 26.05.2020 US 202063030224 P 24.05.2021 US 202117329009 (71) Applicant: Apple Inc. Cupertino CA 95014 (US)	(72) Inventor: SAIGA, Takeyoshi Cupertino, California 95014 (US) (74) Representative: Lang, Johannes  Bardehle Pagenberg Partnerschaft mbB Patentanwälte, Rechtsanwälte Prinzregentenplatz 7 81675 München 81675 München (DE)